As a YourDomain instructor you are required to select the valid statement regarding Cisco IP telephony components.
A.
Call management includes hardware and software that provides standard telephone call processing services.
B.
Call management includes voice gateways, switches, and routers.
C.
Call management includes network-based software elements that enable advanced IP telephone functions.
D.
Call management includes IP telephones that serve as end-user devices for the network.